diff --git a/planemo/galaxy_config.py b/planemo/galaxy_config.py
index 7a4f4d5bf..f4a21af00 100644
--- a/planemo/galaxy_config.py
+++ b/planemo/galaxy_config.py
@@ -140,7 +140,7 @@ def config_join(*args):
             log_level=kwds.get("log_level", "DEBUG"),
         )
         properties = dict(
-            file_path="${temp_directory}files",
+            file_path="${temp_directory}/files",
             new_file_path="${temp_directory}/tmp",
             tool_config_file=tool_conf,
             check_migrate_tools="False",